Feeler movable to distribute wear on yarn



March 27, 1928.

R. G. TURNER FEELER MovABLB To -DlsTRIBuTE'wEAR oN YARN Y 2 Sheets-Sheet Filed Nov. 2. 1925 M Hiya/wg):

March 27, 192s R. G. TURNER FEHLER MOVABL T0 DISTRIBUT WEAR 0N YARN 2 Sheets-Sheet 2 Filed Nov. `2, 1925 Patented Mar. 27, 19218.

UNITED gPATE lorries,...

RICHARD GREENLEAFrU-RNER; orfwoonsrnm MAss/Aorrusr12ers,y AssIGNoR To THE cnoMPToN a KNoWLEsiL'ooM wofRzKs,y or WORCESTER,MASSACHUSETTS, A CORPO;

RATION OF MASSACHUSETTS.

FEELER MovABLE To DISTRIBTE WEAR oN YARN.

.Application 'filed `November 2, 1925.5 Serial No. 66,156.

'lhisinvention relates to ive/tt detecting mechanism for looms Aand it is 'the VV'general object oi the invention to provide meansforgivingthe detecting surface a traversing irnotien with vrespect-to the yarn to 'be' detected te the end that any Wearing incidentto the. blowsstruck Vby the-.detector may be distrib-` uted over agyarn area larger' 'than the area of the lyarn engaging-portions .of the de tector. Y l

Y lVhen so-called :rayon is .used as Warp .1n

the weaving yof fabricslits elastic limi-t is found to be so low lthat the stretching..nor-l mally incident toopening the shed gives it a permanent set and for this reason-rayon has not generally been satisfactory as Warp upz It `is necessary, .theretore, to -introduce this jyarn as lilllngbut it to the present time.

i-s so fine vthat a single :bobbin Will remain' in' the shuttle long enough to cause-.undesirable abrasion at the point Wh`erethe-weft vwdeteo-V tor strikes 'the yarn. Attempts haveb'eefn made to avoid .this abrasion by Iusing very light springs to resist the forward movement ofV the ydetector `when engaging the yarn, but this results' in -less certainty of operation.

`It has also been proposed to use intermit#` tentl'y'operative teelers normally heldout-of4 operative :positionbut moved at j intervals inte detecting position'. l y n lVhen the 'latter method is l:applied to abox periodic sperrt to the bobbin so that on each'd'etecting .y beat a slightly diierent surface Opf-'yarn is struck by the detector. Y

It is a still further object' ofmyf'invention to combine aregularly oscillating mem# ber of ,the usual multicolor weft replenish ing mechanism with a traversing-motion for the detector.

It is a furtherobject of-my invention' to provide the treft' replenishing. controlling, and actuating members `1n relatively fixed the rock shaft 18. l

positions but related to thel detector that they can lbecontrolled by theflatterwhen in any of its different positions. k1

lVith these and other objects in `view which Willappearas .the description proceeds, my invention resides'in the combination ,and arrangement of parts hereinafter Y described and set lforth 'inthe claims; Y

In the accompanying drawings wherein I have shown a convenient embodiment of'my inventiony...- Y. i

F ig. 1 is a-top plan vievv of my Aimproved detecting mechanism showing the same positionedv to-,detect'theyarn near the butt ofthe bobbin, partsbeing shown in section,

Fig..2 is a front elevation of them'echanism shownin Fig. 15 with certain parts in l section, Y.

3 is la` vertical longitudinal section through the'detector at right angles to the bobbin andvshovving the detector in the posi# tionit assumes when lfirst engaged by 'a fu'll bobbin as the latter advances.

Fig. llnis -adetail elevation of the right afdilferent position7 and y l Fig. y5 ,is a verticalzsection-on line -fgof rReferring 'to thaty I have provided a loom frame 10 on whichA is mounteda detector stand llhaving hand Lend of 2 but showing the parts in,

`dranfingsr it will be seen anupstanding arm 12 inzwhich is mountedy forffreefvertical motion a head 13. Saidv headfrecejivesa down motionvon the detecting beat and an up motioncnthenon-detecting 'beat ofthe loomby mechafnfisinznotA shown. A iioatingv actuating lever, 14 isy pivoted as at 15 to the head 13 and has one end thereof kconnected by rod lttol a "lever L17 freely movableabout a shaft 18 journaled inl theWetA-detecting mechanism*v frame y19.

Said arm 17 basa-'finger A2O spvacedffrom and 'overhanging'a lportion of .said leverl 17 to,l delinean open slot which receives a color slide 21. Said. slide `is mounted on arms 22 one of. which is shown inv Fig. V.1 securedto The other end of floating into .ai slot 23 formed ina second arm 24 upstanding from the stand 11. 4Said 'arm 24 is provided Withan openingif transverse lever extends' to the slot 23 and proportioned to receive a controller pin 26 which as shown herein is normally out of the path of the floating lever 14. When said controller pin is under the lever 14, head 13 will descend to give a left hand oscillation to the shaft 18. A

pin 27 passes through the upper portion of arm 24 vand extends across the slot 23 in position to engage the upper surface of the adjacent end of lever 14 to cause said floating lever to move to the dotted line position shown in Fig. 2 when the head 13 is raised. It is to be understood that this latter movement occurs every second pick. when the shuttle is on-the opposite side of the loom and results in giving a periodic right hand oscillation to shaft 18.l The traverse motion to be vdescribed 'hereinafter `is derived from this'periodic right hand motion of shaft 18 yand for a further description of the mechanism thus far described reference mav be had to Patent No. 1,030,748.

The weft detector comprises abed 30 having a slot in the upper face thereof over the opposite longitudinal edges of which extend caps or guide plates 31 held to the bed in any manner. A detector slide32 moves in the slot and is re-strained from upward accidental displacement by the caps. Depending from said'slide is a clip 33 through which extends a rod 34 having a threaded head 35 toV extend through the rear end of the bed 30. A compression spring 36 lies between the bed and the clip and serves to hold the slide 32 yieldingly in rear position as shown;

in Figs. 1 and 3.

A pin'37 secured in opposite walls of the slide'33 has pivotally mounted thereon the 1 lower rear end ofuanfi'ndicator lever. 38 .slotted as at 39 to receive the forward end of a pin or yarn Apenetrating detector 40 as shown in Fig. 3. The slide 32 has secured thereto a broad blunt yarn impinging detector 41 as -seen in Figs;V 1 and 3 and the pin detector member 40 extends through said yarn impinging detector and extends `rear.

wardly to enter the yarn as shown in Fig. 1. A compression spring 42 lying between the slide ,and the indicating lever lholds the latter normally in the full line raised position shown in Fig. 2.

A transmitting lever 43 ispivoted as at 44 to a fixed part of the stand 11 and is connected at the left end as shown in Fig. y1

to the controller pin 26 and has the'otherv end thereof extended as shown in Figs. 2 and 3 to be normally belowthej indicating lever 38. spring 45 lying between the arm 24 and a collar 46 secured to the controller pin 26 holds the lever 43 yieldingly again-st an adjusting screw 47.

So long as sufficient yarn for continued' weaving is present the penetrating detector 40 willenter 'the .yarn as the bobbin moves forwardly and no relative motion of the detectors will take place so that the indicator I Vto. moverforwardly. As the bobbin continues to advance the indicating lever will be moved intoengagement with the transmitting lever 43 to rock the same'and .cause the'controller pin 26" to move under actuating lever 14 latthe time that head' 13 descends. fThe type of weft detect-ing mechanism described hereinis of well known construction andforms no particular'.'partI of my invention. It is to be understood that other forms vof* detectors can Vbe associated with the bed 30 and I do not wish to be limited to the particular herein.

detector illustrated V f.

`As previously stated my invention relates i to mechanismfor givin'gftheyarn engaging surfaces of the detectora traverse motion and inl carrying out the invention'I provide the standl 11 with a slot 6() extending substantially 4parallel yto vthe bobbin. `A

tongue 61 in tegral withand depending fromv the bed-30 extends into slot 60. Saidv stand 11 `isprovided with a slot 62 communicating with'vslot60'and through which extends a stud'63 secured'in the `tongue 61. Said stud 63 has afwasher 64 and Ya head 65 which prevents upward displacement of the bed 3Q with respect'to the stand v11.

In order to provid the traverse motion, I'prov'ide a guide'rod 66 which moves freely throughjarm k,24 and is threadedinto one side of thebed 30 as-at'67. 'f Ajcomparatively light spring 68 is interposed between the arm 24 andthe -bed and tends vto move the,

latter to the' right as shownfin Figs. 1 and 2. VI extend a Deir of "arms 69 fromxtbe right handend of stand 1p1 and secure 'there- V in fa stub shaft 7 0 on which is mountedfor free *rotation a traversing element T com-`V prisin "a heartcam 71fsecure'd to a. ratchet wheel 2 'having teeth 73lying`between relat-ively deep flanges 74. A boss 75 extending from the'fbed- 30 substantially in'alignment with the guide'rod 66 has adjustably secured therein a cam engaging shoe 76.

`Todrive the traversing element T a rod 77 is connected as at 78 to an arm 79 rotatingA withshaft 18 to-receive a downward Vmotion'l on every alternate `pick when the shuttle is on the opposite' side Aof the loom. The lower end ofthe rod 77 has a rod head 8O adjustably secured thereto and provided with'a tooth 81 adapted for engagement `with the teeth 73. Said head 8O is held by gravity inoperative engagement-With the ratchet and is restrained against lateral movementby flanges i4.- A relatively 'heavy'.compres-v vThe operation of the devicewvill be understood vby referring te F ig. 2 `IWhere itV will be seen that-:the detector and uits bed. have .been moved to the .extreme left position by the high point of theheartcam 71.r

As shaft 18 conti-nues :to receive its oscillating .movements yto the right the `tooth 81 Will gi-ve the ratchet a step fbyrstep move-f ment and the comparatively light spring V6.8 will .hold shoev 76 .against the cam `to .permit a gradual-motion of the 'bed :to fthe A,right untilthe parts assume kthe position' indicated in dotted lines :in Fig. 1 and :in full lines in Fig. 4. Continued rotation of A.the ratchet and `heart cam will start the detector bedin the reverse direction andfit Ywill yultimately move back to the position shown in Fig. 2.

- This Atraversing Aof the bed 30;,lcarries' the detector along the bobbin to engage a larger area of yarn than the area of the yarn engaging part of the detector, thus distributing the blows and reducing the abrasions of the yarn.

The right end of transmitting lever 43 is extended to be in engageable position with the indicating lever 38 in any lateral position of the detector, and the latter is effec-tive to give an indication of exhaustion of weft in any position. From the foregoing it will be. seen that I have provided means for giving the detect.- ingV surfaces a. traverse motion so that the blows Which the yarn receives from the detectors will be distributed over a relativelyr largel area of yarn. Anydevice for giving rotary movement to the traversing element T may be employed other than that set forth herein and as previously stated otherfoiins" of detector may be mounted on the bed 30. Also, the controlling and actuating elements are in relatively fixed positions but are at all times under the control of the detector irrespective of the position of the latter.

Having thus described my invention it will be apparent that changes and modifications inay be made therein by those skilled in the art Without departing from the spirit and scope of the invention and I do not Wish to be limited to the details herein disclosed but What I claim is: Y c

l. In a loom having a supply of weft, a detector to cooperate With the saine, and means to give said detector a. regular progressive movement in the direction ofthe length of the weft to present --the same to different portions of the weft independently of the position of the weft relatively to the loom'.

...2.In aflooin having a. sirpply of lweft, a detector'fto':cooperate xvith ythe weft to. determinethe condition .of the same, .and regu larly acting @means .independent .ofithe relative. position of the weft -vvitli .respect to'rtfhe loom, to givesaid cletectorwa different posi tien along .the length ofthe weft supply on successive detecting beats of the loom.

3. In afloom .having a. supply of weft, a Weifttletector ato coopera-te with the supply ofl weft to Cdetermine the condition of the sainea1id regularly acting means independent of the relative pesition of the Weftavith respect to the loom to give said detector a traversing motion with respect to the weft to present said detector to vdifferent portions ofthe `vveftfon successive Ydetecting'beats of the loofm.. f f Y .4. `In aloom yhaving a supplyof weft, a

ldetector-to .cooperate with; the supply of weft, and regularly acting `means findependent-of the relative position .of the-weft lwith f i'espectto Athe loom toycausc -a'step by step relative movement between the lweft supply andfthe ldetector topresentV a dierent surface of Weft to the detector on successive kde-y tecting beats of the loom. y

5. In a loom having a surface to be detected, a Weft detector, a member receiving a regular motion independently of the vdetector each detecting beat of the loom, and connections between the member and the detector to move ythe latter to different positions along the surface to be detected to cooperate With the latter at a plurality of different points. f

6. In a loom having a supply of weft, a weft detector, a carriage to support said detector, and regularly acting means independent of the relative position of the Weftwith respect to the loom to give said carriage a regular motion substantially parallel to the length of the weft supply to be detected to present the detector to a plurality of different surfaces on the weft supply.

7. In a loom having a weft supply, a weft detector to cooperate therewith, a carriage, a support for the carriage, and regularly acting means independent of the relativeY position of the 'weft With respect to the loom to give said carriage a. progressive movement along the support to present the detectorl to a plurality of different surfaces on thefsupply of weft.

8. In a loom having a weft supply, a. detector cooperating With the same, a movable .support for the detector, a regularlymoving stantially parallel to the length of the weft supply, a cam, a regularly oscillating*mem*` ber,` connections between the'regularly oscillating member'and the cam to move the latter, and connections between the cam and the support to move the latter' to give the detector a new position on-each1cletecting beat of the loom. i I

10. In a loom having a weft supply, a regularly oscillating lever, means operable by said lever when the same moves in one flirection to give the detector a movement along the length :ofthe weft supply, controller mechanism, and connections between thevcletector ancl controller mechanism rendered operative at substantial exhaustion of weft by the motion of the regularly moving lever in the opposite direction. y

11. In a loomhaving a weft surface to be detected, a weft" detector, a mounting for said detector to keep the latter always in the same vertical position, and regularly acting means independent of the relative position of the weft with` respect to the loom to give said detector a progressive movement relatively to the surface to be detected to present` different weft, surfaces to the detector.

12. lIn a loomrhavingaweft carrier with:

a surfaceV to be detected, a weft-detector,

means acting independently of the carrierto move said detectorv along'the surface to be detected so that different portions ofthe surface to be detected will be presented to the detector on successive detecting beats of the loom, and means toveffect indication :of weft exhaustionwhen the cletectoris in any of its positions.v f'

any of its progressive positions'.v Y f 'In testimony whereof-I have hereunto af-v fixed my signature. ,K

l RICHARD GRRRNL'RAR T UiumRl 

